able to think clearly
Alert
to fill a space completely so that it becomes slow or stopped
Jammed
to blow or rush in gusts
Gusted
careful about avoiding danger or risks
Cautious
very brave
Courageous
someone who does something without being forced
Volunteer
the driver of a dogsled
Musher
to make a serious promise
Vowed
a person who flies an airplane or helicopter
Pilot
to call out loudly
Hollered
a severe snowstorm that goes on for a long time
Blizzard
a type of snowstorm in which the falling snow makes it very difficult to see
Whiteout
a confusing system of connected passages
Maze
a set of straps that are placed on a animal so they can pull something heavy
Harness
